[lazyeye]

I believe these agencies may have other kinds of intelligence data such as satellite photos of the (empty?) Wuhan Institute of Virology carpark, spikes in mobile phone activity in the area etc. So assessments are made on more than just biological principles.

[Jerrrry]

The hospital was full.

The institute would never be full.

There is no "bring your child to work day" in China.

Weird conflation, unlikely... uunless you mean to muddy the waters and sow dis-information.

[lazyeye]

I would argue you are sowing disinfo and I honestly dont know what point you are trying to make. Spikes and/or significant reductions in activity as indicated by external data sources, and particular the timing thereof, will obviously be very useful for determining the sequence of events.

[Jerrrry]

The hospital, sure.

Why would Wuhan center being empty represent anything?

People don't rush to a random (unrelated) building when they get sick at the "market".

Coincidence, surely?

What are the chances of having a specialized infectious disease center next to where that type of disease spontaneously emerged?

More or less likely than a bat having sex with a panda possum?

No one, not even the cowardly academics, believed it.